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VNA Calibration with lossy cables

Question asked by bonanzaman on Nov 7, 2011
Latest reply on Nov 7, 2011 by Dr_joel

I'd like to get information on VNA calibration with lossy test cables. We are using a N5230C with and E-Cal.

The test cables are quality cables(micro-Coax and Times) but are 30 feet long each. They appear to be fairly stable.
Can I get a valid calibration for S11 and S22 with lossy 10dB each cables? The total loss for port 1 and 2 test cables would be 20dB.

How about 20dB each cable with a 40dB total loss?

Is there any printed matter on this?